Clean Air Scientific Advisory Committee (CASAC)

Advisory Reports

Advisory Reports


* Sorting by Signed Date is only available from 2012 on.

NAAQS Review Cycle: 2021-Present, Topic: Lead
YearReport TitleFileReport NumberSigned Date 
2022Consultation on the EPA’s Integrated Review Plan for the National Ambient Air Quality Standards for Lead. Volume 2: Planning for the Review and the Integrated Science Assessment (March 2022) (PDF)DownloadEPA-CASAC-22-00304/22/2022Agency Response (PDF)
NAAQS Review Cycle: 2021-Present, Topic: Ozone
YearReport TitleFileReport NumberSigned Date 
2023CASAC Review of the EPA’s Integrated Science Assessment (ISA) for Ozone and Related Photochemical Oxidants (Final Report - April 2020) (PDF)DownloadEPA-CASAC-23-00111/22/2022Agency Response (PDF)
2022CASAC Review Process for the National Ambient Air Quality Standards for Ozone (PDF)DownloadEPA-CASAC-22-00406/15/2022Agency Response (PDF)
NAAQS Review Cycle: 2021-Present, Topic: Particulate Matter
YearReport TitleFileReport NumberSigned Date 
2022CASAC Review of the EPA’s Policy Assessment for the Reconsideration of the National Ambient Air Quality Standards for Particulate Matter (External Review Draft – October 2021) (PDF)DownloadEPA-CASAC-22-00203/18/2022Agency Response (PDF)
2022CASAC Review of the EPA’s Supplement to the 2019 Integrated Science Assessment for Particulate Matter (External Review Draft – October 2021) (PDF)DownloadEPA-CASAC-22-00103/18/2022Agency Response (PDF)
NAAQS Review Cycle: 2018-2020, Topic: Ozone
YearReport TitleFileReport NumberSigned Date 
2020CASAC Review of the EPA's Integrated Science Assessment for Ozone and Related Photochemical Oxidants (External Review Draft - September 2019) (PDF)DownloadEPA-CASAC-20-00202/19/2020Agency Response (PDF)
2020CASAC Review of the EPA's Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft & October 2019) (PDF)DownloadEPA-CASAC-20-00302/19/2020Agency Response (PDF)
2019Consultation on the EPA's Integrated Review Plan for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft & October 2018) (PDF)DownloadEPA-CASAC-19-00112/10/2018Agency Response (PDF)
NAAQS Review Cycle: 2015-2020, Topic: Particulate Matter
YearReport TitleFileReport NumberSigned Date 
2016CASAC Review of the EPA's Integrated Review Plan for the National Ambient Air Quality Standards for Particulate Matter (External Review Draft & April 2016) (PDF)DownloadEPA-CASAC-16-00308/31/2016Agency Response (PDF)
2019CASAC Review of the EPA's Integrated Science Assessment for Particulate Matter (External Review Draft & October 2018) (PDF)DownloadEPA-CASAC-19-00204/11/2019Agency Response (PDF)
2020CASAC Review of the EPA's Policy Assessment for the Review of the National Ambient Air Quality Standards for Particulate Matter (External Review Draft & September 2019) (PDF)DownloadEPA-CASAC-20-00112/16/2019Agency Response (PDF)
NAAQS Review Cycle: 2013-Present, Topic: Nitrogen Oxides and Sulfur Oxides Secondary NAAQS
YearReport TitleFileReport NumberSigned Date 
2017CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter & Ecological Criteria (First External Review Draft & February 2017) (PDF)DownloadEPA-CASAC-17-00409/28/2017Agency Response (PDF)
2020Consultation on the EPA's Review of the Secondary Standards for Ecological Effects of Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter: Risk and Exposure Assessment Planning Document (August - 2018) (PDF)DownloadEPA-CASAC-20-00505/05/2020Agency Response (PDF)
2016CASAC Review of the EPA's Draft Integrated Review Plan for the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Oxides of Sulfur (PDF)DownloadEPA-CASAC-16-00104/01/2016Agency Response (PDF)
2020CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter & Ecological Criteria (Second External Review Draft & June 2018) (PDF)DownloadEPA-CASAC-20-00405/05/2020Agency Response (PDF)
NAAQS Review Cycle: 2013-2018, Topic: Nitrogen Oxides Primary NAAQS
YearReport TitleFileReport NumberSigned Date 
2017CASAC Review of the EPA's Policy Assessment for the Review of the Primary National Ambient Air Quality Standards for Nitrogen Dioxide (External Review Draft & September 2016) (PDF)DownloadEPA-CASAC-17-00103/07/2017Agency Response (PDF)
2013Consultation on the EPA's Draft Plan for the Development of the Integrated Science Assessment for Nitrogen Oxides & Health Criteria (May 2013 Draft) (PDF)DownloadEPA-CASAC-13-00606/18/2013Agency Response (PDF)
2015CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen & Health Criteria (Second External Review Draft & January 2015) (PDF)DownloadEPA-CASAC-15-00109/09/2015Agency Response (PDF)
2015CASAC Review of the EPA's Review of the Primary National Ambient Air Quality Standards for Nitrogen Dioxide: Risk and Exposure Assessment Planning Document (PDF)DownloadEPA-CASAC-15-00209/09/2015Agency Response (PDF)
2014CASAC Review of the EPA's Integrated Science Assessment for Oxides of Nitrogen & Health Criteria (First External Review Draft & November 2013) (PDF)DownloadEPA-CASAC-14-00206/10/2014Agency Response (PDF)
2014CASAC Review of the EPA's Integrated Review Plan for the Primary National Ambient Air Quality Standards for Nitrogen Dioxide (External Review Draft) (PDF)DownloadEPA-CASAC-14-00106/10/2014Agency Response (PDF)
NAAQS Review Cycle: 2013-2018, Topic: Sulfur Oxides Primary NAAQS
YearReport TitleFileReport NumberSigned Date 
2016CASAC Review of the EPA's Integrated Science Assessment for Sulfur Oxides & Health Criteria (External Review Draft & November 2015) (PDF)DownloadEPA-CASAC-16-00204/15/2016Agency Response (PDF)
2014CASAC Review of the EPA's Integrated Review Plan for the Primary National Ambient Air Quality Standard for Sulfur Dioxide (External Review Draft - March 2014) (PDF)DownloadEPA-CASAC-14-00607/24/2014Agency Response (PDF)
2017Consultation on the EPA's Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides: Risk and Exposure Assessment Planning Document (External Review Draft & February 2017) (PDF)DownloadEPA-CASAC-17-00204/18/2017Agency Response (PDF)
2017CASAC Review of the EPA's Integrated Science Assessment for Sulfur Oxides & Health Criteria (Second External Review Draft & December 2016) (PDF)DownloadEPA-CASAC-17-00306/30/2017Agency Response (PDF)
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